111742402021645 has 8 divisors (see below), whose sum is σ = 134091369653760. Its totient is φ = 89393596798800.

The previous prime is 111742402021583. The next prime is 111742402021717. The reversal of 111742402021645 is 546120204247111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111742402021645 - 2⁷ = 111742402021517 is a prime.

It is a super-3 number, since 3×111742402021645³ (a number of 43 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111742402021598 and 111742402021607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39083485 + ... + 41844994.

It is an arithmetic number, because the mean of its divisors is an integer number (16761421206720).

Almost surely, 2^{111742402021645} is an apocalyptic number.

It is an amenable number.

111742402021645 is a deficient number, since it is larger than the sum of its proper divisors (22348967632115).

111742402021645 is an equidigital number, since it uses as much as digits as its factorization.

111742402021645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81204635.

The product of its (nonzero) digits is 107520, while the sum is 40.

Adding to 111742402021645 its reverse (546120204247111), we get a palindrome (657862606268756).

The spelling of 111742402021645 in words is "one hundred eleven trillion, seven hundred forty-two billion, four hundred two million, twenty-one thousand, six hundred forty-five".